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Electro-oculogram signal-based computer input control method

An electro-ophthalmic signal and control method technology, applied in the field of biological information, can solve the problems of inability to use computer input control, single control function, etc.

Inactive Publication Date: 2014-05-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the Chinese invention patent application with the publication number CN1601445A disclosed a "multifunctional human body bio-oculoelectric switch control device" on March 30, 2005, which includes an oculoelectric signal acquisition device, a single-chip embedded microcontroller processing, The switch drive circuit, etc., its principle is to use the electro-oculometry to obtain the control signal. Although the structure of this scheme is simple, the control command can only be obtained after multiple oculo-electric outputs. Therefore, the control function is single, and only a few switch control signals can be provided. for complex computer input control

Method used

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  • Electro-oculogram signal-based computer input control method

Examples

Experimental program
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Embodiment 1

[0024] Embodiment 1: as Figure 5 Shown, a kind of computer input control method based on electrooculogram signal, comprises the following steps:

[0025] Step 1: Preset a keyboard key selection area in the computer, and the keys in the keyboard key selection area are arranged in a matrix of multiple rows and multiple columns.

[0026] The key selection area of ​​the keyboard is as follows: image 3 As shown, it is composed of a matrix of M (such as M=8) columns×N rows (such as N=7), each matrix unit represents a keyboard key symbol, and the symbols in the brackets of the keyboard keys are after selecting "shift" first, The symbols output by the selected keys to the computer, the non-displayed symbols Shift, Space, Caps lock, Esc, Ctrl, Alt, Tab, Enter in the keyboard selection area are defined the same as the general keyboard.

[0027] Step 2: The keyboard key selection area switches the highlight selection area in a row cycle, and the electro-oculogram acquisition and tran...

Embodiment 2

[0042] Embodiment 2: as Figure 6 Shown, a kind of computer input control method based on electrooculogram signal, comprises the following steps:

[0043] A computer input control method based on electro-oculogram signals, comprising the steps of:

[0044] Step 1: preset a mouse button selection area in the computer, and the buttons in the mouse button selection area are arranged in a row and multiple columns; the mouse button selection and mouse direction control area are as follows: Figure 4 As shown, it consists of a matrix of M (such as M=11) columns×N rows (such as N=1), and each matrix unit represents a mouse control command. Among them, "←" means that the mouse moves to the left by one horizontal step (the horizontal step is 1 / 25 of the effective horizontal display distance of the computer monitor); "→" means that the mouse moves to the right by one horizontal step; "↑" means Move the mouse up a vertical step (the vertical step is one-tenth of the effective vertical ...

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Abstract

The invention relates to an electro-oculogram signal-based computer input control method which comprises the following steps of: 1, presetting a keyboard key selection area in a computer, wherein keys in the keyboard key selection area are arranged in a multi-row multi-column matrix; 2, circularly switching highlight selection area in the keyboard key selection area according to rows, acquiring and identifying an electro-oculogram and inputting the electro-oculogram serving as a control signal to the computer by an electro-oculogram acquisition transmission module, simultaneously stopping switching the highlight selection area according to the rows, and circularly switching highlight keys in the highlight selection area according to columns; and 3, acquiring and identifying the electro-oculogram again and inputting the electro-oculogram serving as the control signal to the computer by the electro-oculogram acquisition transmission module, and simultaneously stopping switching the highlight keys according to columns, wherein the highlight keys are used as the input control result of the computer. The method has the advantages that complex computer input control can be performed, and a user can use the computer without obstacles by using the method.

Description

technical field [0001] The invention relates to the technical field of biological information, in particular to the control technology of electrooculogram signals. Background technique [0002] At present, the human-computer interaction system constructed by using the biological signals of the human body to communicate with the computer or control equipment is the frontier and hot spot of the research on assistive devices for the disabled. For example, the Chinese invention patent application with the publication number CN1423228A disclosed a "device and method for identifying the gaze direction of human eyes and its application" on June 11, 2003, which includes a camera, an image interface and a processor. Equipment, timing cycle image acquisition and human gaze direction recognition, and non-contact intelligent control technology using human eye gaze as control instructions and auxiliary signals. For example, the blinking of eyes is collected as an image, and then the ima...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/033G06F3/02G06F3/01
Inventor 刘铁军冯阳尧德中
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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